71105168 has 20 divisors (see below), whose sum is σ = 137959548. Its totient is φ = 35502720.

The previous prime is 71105161. The next prime is 71105173. The reversal of 71105168 is 86150117.

It can be written as a sum of positive squares in 2 ways, for example, as 17405584 + 53699584 = 4172^2 + 7328^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71105168.

It is not an unprimeable number, because it can be changed into a prime (71105161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10430 + ... + 15842.

Almost surely, 2^71105168 is an apocalyptic number.

It is an amenable number.

71105168 is a deficient number, since it is larger than the sum of its proper divisors (66854380).

71105168 is a wasteful number, since it uses less digits than its factorization.

71105168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6242 (or 6236 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 71105168 is about 8432.3880366122. The cubic root of 71105168 is about 414.2861254964.

The spelling of 71105168 in words is "seventy-one million, one hundred five thousand, one hundred sixty-eight".